FITS SHIMANO TLD REELS TLD15, TLD20, TLD25, TLD30II(2SP), TEKOTA REELS TEK700, TEK700LC, TEK800, TEK800LC, TORIUM REELS TOR30, TOR40, TOR50, TRINADAD REELS TN20, TN30, TN40, TN50, TYRNOS REELS TYR16, TYR16II(2SP), TYR20, TYR20II(2SP), TYR30, TYR30II(2SP), AND MOST SHIMANO REELS UP TO 4/0 SIZE THAT USE DROP IN BOLTS. SHIMANO PART# RSC-1C. MEASURES 1.5 INCHES CENTER TO CENTER OF ROD CLAMP OPENINGS. INCLUDED IN ROD CLAMP KIT 2 PACK# RSC-1X.